9 3
c
abcdefghi
abcdefghi
abcdefghi
abcdefghi
abcdefghi
.........
.........
.........
.........
c
fghiabcde
ghiabcdef
hiabcdefg
iabcdefgh
jjjjjjjjj
.........
.........
.........
.........
a
eaabbcdde
aabbccdde
aabcccdee
abbccddee
abbcddeea
.........
.........
.........
.........